Brand book

ARCA

Arca Academy of Architecture

One set of rules for every medium: the mark, the palette, the typeface and the signature devices. A layout built from this page reads as ARCA.

Revision 1.0

02

Colour

Four accents, six neutrals and two utility colours. No other values appear in layouts.

Accents

#D8F24C

Lime

RGB 216 242 76

Lead accent on dark: buttons, numerals, the triangle, in-text highlights.

On white — 1.26 (not for text)On graphite — 13.86 (AA)

#EE2578

Fuchsia

RGB 238 37 120

Primary action and the star: application button, icon tiles.

On white — 4.06 (AA, 24px and up)On graphite — 4.29 (AA, 24px and up)

#070FAB

Ultramarine

RGB 7 15 171

Text, thin rules, small tags, the cloud shape, the third letter of the mark. Never a large block background.

On white — 12.61 (AA)On graphite — 1.38 (not for text)

#0891B2

Cyan

RGB 8 145 178

The fourth track: point markers and captions on dark.

On white — 3.68 (AA, 24px and up)On graphite — 4.73 (AA)

Neutrals

#FFFFFF

White

RGB 255 255 255

Background of light sections and text on dark.

#EEEEEE

Cloud

RGB 238 238 238

Tiles and cards inside light sections.

#D9D9D9

Line

RGB 217 217 217

Dividers and connector lines on light backgrounds.

#1F1F1F

Card

RGB 31 31 31

Dark cards inside both light and dark sections.

#1A1A1A

Graphite

RGB 26 26 26

Main dark section background and text on light.

#202020

Base

RGB 32 32 32

Page background, the bottom layer.

Utility

#2B6585

Steel

RGB 43 101 133

Third plane: the rhombus, social buttons, utility captions on light.

On white — 6.36 (AA)On graphite — 2.74 (not for text)

#FF0000

Error

RGB 255 0 0

Forms only: the required field asterisk and error text.

On white — 4.00 (AA, 24px and up)On graphite — 5.25 (AA)

Withdrawn values

These shades appeared in layouts as accidental duplicates. Replace them with the canonical value whenever the block is edited.

  • #FF1F8E#EE2578
  • #E93B81#EE2578
  • #DFFF3B#D8F24C
  • #D3F23D#D8F24C
  • #2563EB#070FAB
  • #0057FF#070FAB
  • #000EB0#070FAB
  • #00B4D8#0891B2
  • #2D6487#2B6585

Rules

  • One lead accent per screen; the rest work in points: a numeral, a shape, a marker.

  • Lime lives on dark only: 13.86 contrast on graphite against 1.26 on white.

  • White text on fuchsia starts at 18px Bold: 4.06 only covers large type.

  • Ultramarine is a background and text colour on light (12.61). On graphite it is unreadable (1.38).

  • Cyan as text works on dark only (4.73); on white it is a fill colour.

Never

  • Introduce new shades for a single layout instead of the canonical ones.

  • Stack accent on accent: lime on fuchsia, cyan on ultramarine.

  • Set text in steel on a dark background — 2.74 contrast.

  • Use the utility red anywhere outside forms.

03

Type

Kreadon is the only typeface of the brand. System faces are allowed as a fallback when the files cannot load.

Kreadon

A local family of seven weights, from ExtraLight 200 to ExtraBold 800. Loaded from the @meetorra/fonts package through the --assets-font-kreadon variable.

ABCDEFGHIJKLMNOPQRSTUVWXYZ 0123456789

Weights

  • Academy of architecture200 · ExtraLightNot in use
  • Academy of architecture300 · LightNot in use
  • Academy of architecture400 · RegularWorking
  • Academy of architecture500 · MediumWorking
  • Academy of architecture600 · DemiNot in use
  • Academy of architecture700 · BoldWorking
  • Academy of architecture800 · ExtraBoldAccents only

Type scale

  • 12/14 px · 700 · leading 1.0 · uppercase

    Kicker

    The section's running number before the heading, uppercase, tinted in the section's accent.

  • 55/159 px · 500 · leading 1.0

    Display

    The first screen. One line across the container, never repeated in the layout.

  • 24/64 px · 500 · leading 1.0 · uppercase

    Section heading

    Opens every block. Always uppercase, one or two lines.

  • 18/32 px · 400 · leading 1.2

    Subtitle

    A single sentence under the section heading that explains it.

  • 48/96 px · 700 · leading 1.0

    Large numeral

    Item numbers and statistics. Colour cycles through the accents.

  • 16/24 px · 700 · leading 1.2 · uppercase

    Card heading

    Headings inside cards and lists, uppercase.

  • 14/16 px · 400 · leading 1.4

    Body text

    Paragraphs and descriptions. Measure no wider than 530px.

  • 14/14 px · 500 · leading 1.4

    Caption

    Utility labels, tags and table values.

Rules

  • Three working weights: Regular 400, Medium 500 and Bold 700.

  • ExtraBold 800 is reserved for the mark and large numerals.

  • Uppercase belongs to section and card headings, never to paragraphs.

  • Large sizes take 1.0 leading, body text takes 1.4.

  • Leave tracking alone: the face is drawn for the default value.

Never

  • Mix Kreadon with another typeface in one layout.

  • Use ExtraLight, Light or Demi — they break the rhythm.

  • Stretch the face or fake a weight with an outline.

04

Signature shapes

Four geometric forms are the second identifier of the brand after colour. Each one keeps a fixed colour.

Star

#EE2578

Accent of the first screen and of badges. The only shape that carries text on top.

Triangle

#D8F24C

Direction and movement. A large background patch on light sections.

Rhombus

#2B6585

Third plane: small elements near the section edge.

Cloud

#070FAB

A calm backdrop under photography and cards.

Rotation

Four positions are allowed: minus 15°, 0°, 15° and 90°. Arbitrary angles break the form.

  • -15°
  • 0°
  • 15°
  • 90°

Rules

  • A shape is a decorative layer: it sits under the content and never catches the cursor.

  • No more than one shape in the decorative layer of a section. Shape icons inside the content do not count.

  • The colour of a shape is fixed and does not change between sections.

  • A shape may be cropped by the edge of the screen — that is the intended device.

  • Sizes run from 24px as a marker to 420px as a background patch — larger only on the first screen.

Never

  • Outline a shape, fill it with a gradient or add a shadow.

  • Place a shape over text, over a face in a photograph, or over the mark.

  • Rotate to an arbitrary angle or mirror the form.

  • Draw new shapes in this style.

05

Devices

The recognisable details that make a layout read as ARCA even without the logo.

Apply nowSee the programme

Pill buttons

Pill radius, Bold 16px, 32 by 12 padding. A graphite fill carries the primary action, an outline the secondary one. A coloured fill is a rare exception.

The academy teaches design inside real studio practice.

Lime highlight

A short phrase in a lime pill inside a paragraph. Once per section.

25places in the first intake

Numeral card

Card background, block radius (12px), ExtraBold numeral, Medium 14px caption.

Composition

Marker: dot and line

A 12px colour dot and a 1px white line under the item heading.

Background rhythm

White sections alternate with dark ones: one or two light sections between two graphite ones. Accent colours never fill a whole section background — only text, thin rules, and small tags. Grey is never a section background — it belongs to cards.

  • Icon
  • Card
  • Block
  • Pill

Radii

Four values for the whole site; nothing else is used.

City photo layer

Saint Petersburg blocks in the lower right of the first screen: the photograph runs under the content and is cropped by the edge.

City photo layer

Grid

Container
1324px
Gutters
16px
Measure
530px

Rules

  • A 1324px container with 16px gutters is shared by every page.

  • Vertical section padding: 48px on mobile, 120px on desktop.

  • Heading, subtitle and content align to the left edge of the container.

  • Numerals in lists and statistics cycle through the accent palette.

  • No more than one shape per section — most sections carry no shape at all. The whole landing page gets one genuinely bold shape moment, not a pattern.

  • One accent colour as a fill per section — everything else stays in graphite, white and cloud neutrals.

Never

  • Centre long paragraphs or section headings.

  • Mix different radii inside one block.

  • Place two light or two dark sections in a row.

  • Scatter several shapes across one section as decoration.

  • Fill more than one element per section with an accent colour.